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swBegin tweaks

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This commit is contained in:
Bigfoot71 2025-05-04 16:57:51 +02:00
parent 0a6b41d189
commit 0e58392e8f
1 changed files with 23 additions and 23 deletions
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46
src/external/rlsw.h vendored
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@ -626,8 +626,6 @@ typedef struct {
float clearColor[4]; // Color used to clear the screen float clearColor[4]; // Color used to clear the screen
float clearDepth; // Depth value used to clear the screen float clearDepth; // Depth value used to clear the screen
uint32_t currentTexture;
int vpPos[2]; // Represents the top-left corner of the viewport int vpPos[2]; // Represents the top-left corner of the viewport
int vpDim[2]; // Represents the dimensions of the viewport (minus one) int vpDim[2]; // Represents the dimensions of the viewport (minus one)
int vpMin[2]; // Represents the minimum renderable point of the viewport (top-left) int vpMin[2]; // Represents the minimum renderable point of the viewport (top-left)
@ -640,6 +638,8 @@ typedef struct {
float scHMin[2]; // Represents the minimum renderable point of the scissor rect in clip space float scHMin[2]; // Represents the minimum renderable point of the scissor rect in clip space
float scHMax[2]; // Represents the maximum renderable point of the scissor rect in clip space float scHMax[2]; // Represents the maximum renderable point of the scissor rect in clip space
uint32_t currentTexture;
struct { struct {
float* positions; float* positions;
float* texcoords; float* texcoords;
@ -651,6 +651,7 @@ typedef struct {
SWdraw drawMode; // Current primitive mode (e.g., lines, triangles) SWdraw drawMode; // Current primitive mode (e.g., lines, triangles)
SWpoly polyMode; // Current polygon filling mode (e.g., lines, triangles) SWpoly polyMode; // Current polygon filling mode (e.g., lines, triangles)
int reqVertices; // Number of vertices required for the primitive being drawn
float pointRadius; // Rasterized point radius float pointRadius; // Rasterized point radius
float lineWidth; // Rasterized line width float lineWidth; // Rasterized line width
@ -3766,6 +3767,23 @@ void swBegin(SWdraw mode)
RLSW.isDirtyMVP = false; RLSW.isDirtyMVP = false;
} }
/* --- Obtaining the number of vertices needed for this primitive --- */
switch (mode) {
case SW_POINTS:
RLSW.reqVertices = 1;
break;
case SW_LINES:
RLSW.reqVertices = 2;
break;
case SW_TRIANGLES:
RLSW.reqVertices = 3;
break;
case SW_QUADS:
RLSW.reqVertices = 4;
break;
}
/* --- Initialize some values --- */ /* --- Initialize some values --- */
RLSW.vertexCounter = 0; RLSW.vertexCounter = 0;
@ -3774,7 +3792,7 @@ void swBegin(SWdraw mode)
void swEnd(void) void swEnd(void)
{ {
RLSW.vertexCounter = 0; RLSW.drawMode = 0;
} }
void swVertex2i(int x, int y) void swVertex2i(int x, int y)
@ -3844,27 +3862,9 @@ void swVertex4fv(const float* v)
vertex->homogeneous[2] = (*mat)[2] * v[0] + (*mat)[6] * v[1] + (*mat)[10] * v[2] + (*mat)[14] * v[3]; vertex->homogeneous[2] = (*mat)[2] * v[0] + (*mat)[6] * v[1] + (*mat)[10] * v[2] + (*mat)[14] * v[3];
vertex->homogeneous[3] = (*mat)[3] * v[0] + (*mat)[7] * v[1] + (*mat)[11] * v[2] + (*mat)[15] * v[3]; vertex->homogeneous[3] = (*mat)[3] * v[0] + (*mat)[7] * v[1] + (*mat)[11] * v[2] + (*mat)[15] * v[3];
/* --- Obtaining the number of vertices needed for this primitive --- */
int neededVertices = 0;
switch (RLSW.drawMode) {
case SW_POINTS:
neededVertices = 1;
break;
case SW_LINES:
neededVertices = 2;
break;
case SW_TRIANGLES:
neededVertices = 3;
break;
case SW_QUADS:
neededVertices = 4;
break;
}
/* --- Immediate rendering of the primitive if the required number is reached --- */ /* --- Immediate rendering of the primitive if the required number is reached --- */
if (RLSW.vertexCounter == neededVertices) { if (RLSW.vertexCounter == RLSW.reqVertices) {
switch (RLSW.polyMode) { switch (RLSW.polyMode) {
case SW_FILL: case SW_FILL:
sw_poly_fill_render(); sw_poly_fill_render();
@ -3876,7 +3876,7 @@ void swVertex4fv(const float* v)
sw_poly_point_render(); sw_poly_point_render();
break; break;
} }
RLSW.vertexBuffer[0] = RLSW.vertexBuffer[neededVertices - 1]; RLSW.vertexBuffer[0] = RLSW.vertexBuffer[RLSW.reqVertices - 1];
RLSW.vertexCounter = 0; RLSW.vertexCounter = 0;
} }
else { else {